Rocky Mountain Douglas-fir
Scientific Name: Pseudotsuga menziesii (Mirb.) Franco var. glauca (Beissn.) Franco
Synonyms: Pseudotsuga flahaultii Flous, Pseudotsuga menziesii (Mirb.) Franco var. <i>flahaultii</i> (Flous) Silba, Pseudotsuga taxifolia (Lamb.) Britton var. <i>glauca</i> (Beissn.) Sudw.
Classification: Plantae/ Tracheobionta / Spermatophyta / Coniferophyta / Pinopsida / / Pinales / Pinaceae / Pseudotsuga Carrière/ Pseudotsuga menziesii (Mirb.) Franco var. glauca (Beissn.) Franco
| General Information | |
|---|---|
| Usda Symbol | PSMEG |
| Group | Gymnosperm |
| Life Cycle | Perennial |
| Growth Habits | Tree |
| Native Locations | PSMEG |
Plant Guide
Use soil moisture sensors to measure the soil moisture of Rocky Mountain Douglas-fir.
Plant Traits
Growth Requirements
| Temperature, Minimum (°F) | -32 |
|---|---|
| Adapted to Coarse Textured Soils | Yes |
| Adapted to Fine Textured Soils | No |
| Adapted to Medium Textured Soils | Yes |
| Anaerobic Tolerance | Low |
| CaCO3 Tolerance | Medium |
| Cold Stratification Required | Yes |
| Drought Tolerance | High |
| Fertility Requirement | Medium |
| Fire Tolerance | None |
| Frost Free Days, Minimum | 65 |
| Hedge Tolerance | None |
| Moisture Use | Medium |
| pH, Maximum | 7.2 |
| pH, Minimum | 5.9 |
| Planting Density per Acre, Maxim | 1200 |
| Planting Density per Acre, Minim | 300 |
| Precipitation, Maximum | 45 |
| Precipitation, Minimum | 22 |
| Root Depth, Minimum (inches) | 26 |
| Salinity Tolerance | None |
| Shade Tolerance | Intermediate |
Morphology/Physiology
| Bloat | None |
|---|---|
| Toxicity | None |
| Resprout Ability | No |
| Shape and Orientation | Conical |
| Active Growth Period | Spring and Summer |
| C:N Ratio | High |
| Coppice Potential | No |
| Fall Conspicuous | No |
| Fire Resistant | No |
| Flower Color | Yellow |
| Flower Conspicuous | No |
| Foliage Color | Green |
| Foliage Porosity Summer | Dense |
| Foliage Porosity Winter | Dense |
| Foliage Texture | Medium |
| Fruit/Seed Conspicuous | No |
| Nitrogen Fixation | None |
| Low Growing Grass | No |
| Lifespan | Long |
| Leaf Retention | No |
| Known Allelopath | No |
| Height, Mature (feet) | 110.0 |
| Height at 20 Years, Maximum (fee | 25 |
| Growth Rate | Moderate |
| Growth Form | Single Stem |
| Fruit/Seed Color | Brown |
Reproduction
| Vegetative Spread Rate | None |
|---|---|
| Small Grain | No |
| Seedling Vigor | Medium |
| Seed Spread Rate | Slow |
| Fruit/Seed Period End | Fall |
| Seed per Pound | 38080 |
| Propagated by Tubers | No |
| Propagated by Sprigs | No |
| Propagated by Sod | No |
| Propagated by Seed | Yes |
| Propagated by Corm | No |
| Propagated by Container | Yes |
| Propagated by Bulb | No |
| Propagated by Bare Root | Yes |
| Fruit/Seed Persistence | No |
| Fruit/Seed Period Begin | Summer |
| Fruit/Seed Abundance | High |
| Commercial Availability | Contracting Only |
| Bloom Period | Mid Spring |
| Propagated by Cuttings | No |
Suitability/Use
| Veneer Product | No |
|---|---|
| Pulpwood Product | No |
| Post Product | No |
| Palatable Human | No |
| Palatable Graze Animal | Low |
| Palatable Browse Animal | Low |
| Nursery Stock Product | No |
| Naval Store Product | No |
| Lumber Product | Yes |
| Fuelwood Product | Medium |
| Fodder Product | No |
| Christmas Tree Product | No |
| Berry/Nut/Seed Product | No |
